Neptronic EFCB Series, Руководство пользователя

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EFCB Series Controller
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Introduction
This document provides information on using the Neptronic controller communications feature. This product
provides a BACnet
®
network interface between BACnet
®
client devices and Neptronic controllers. It uses the
BACnet
®
Master Slave/Token Passing (MS/TP) protocol at the BACnet
®
MAC layer.
This document assumes you are familiar with BACnet
®
and BACnet
®
terminology.
BACnet
®
Overview
Performance
The controller uses a synchronous implementation for BACnet
®
messages. Each BACnet
®
confirmed service
request is answered as quickly as possible without using Reply Postponed. In particular, MS/TP implementation
performs within Tusage_delay of 15ms in order to assure Tusage_timeout values within 20ms.
Support for MS/TP
The controller supports a Full Master Node state machine for MS/TP. All parameters are configured via the
thermostat menu or via the BACnet
®
WriteProperty service. Changes made via the WriteProperty take effect
immediately and does not require a restart of the controller. For more information the configurable properties,
please refert to the
Getting Started
section on page 3. For more information on the thermostat menu, please
refer to the controller’s
Specification & Installation Manual
for more details.
BIBB Support
The controller generally behaves as a B-ASC type profile server. The following specific BIBBs are supported per
their relevant definitions in Annex K to BACnet
®
: DS-RP-B, DS-RPM-B, DS-WP-B, DS-WPM-B, DM-DDB-B,
DM-DOB-B, DM-DCC-B
Object Support (in general)
The controller supports a table-based fixed list of BACnet
®
-visible values which appear as Present_Values of
various BACnet
®
standard object types, in addition to a Device object.
Alarms
Although the controller supports the ability to indicate various alarm conditions through value changes in
properties of several of its objects, it
does not
generate BACnet
®
Event Notifications.
Features
Neptronic controllers also offer the following time-saving features.
Auto Baud Rate Detection
The controller automatically configures its baud rate by detecting the network speed upon connection.
Auto Device Instance Configuration
The controller automatically configures its device instance to MAC address.
Copy Configuration
Copy the controller’s entire configuration and broadcast it to other controllers of the same type on the same
network.